The DM's USB driver creates 8 assignable USB devices which are available as IN/OUT MIDI ports in Sonar (Named DM2000-1 through 8). This is in addition to the standard MIDI IO which can be used if connected to an independent MIDI interface. If all are used then 9 possible devices could be available in Sonar. In the DM I have assigned the following: MIDI connectors for regular MIDI duty and MIDI Clock. USB 1-4 is assigned to DAW. USB-5 for MMC Remote. The DM breaks those four USB DAW ports in to the following: USB-1 strips 1-8, USB-2 strips 9-16, USB-3 strips 17-24, USB-4 PAN/Surround. The transport/locator controls appear to be configured independently of the four USB DAW ports. This is why I have set MMC transport/locator controls to USB-5. But it gets more confusing. I've loaded up MIDI-OX and am looking at what the DM is actually outputting for the transport/locator section.In the Machine Configuration window for REMOTE (again set to USB-5), if the machine type is set to MACHINE CONTROL the DM outputs SYSEX on USB-5. HOWEVER, if the machine type is set to DAW CONTROL, it outputs CONTROL CHANGE on USB-1, NOT USB-5. Even though it's set for USB-5. Confused yet?